Lumicon Neutral Density Moon Filter ND13, ND25 and ND50 2'' Light transmission:13% The Stars and the Deep

SKU: 77855668523

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Lumicon Neutral Density Moon Filter ND13, ND25 and ND50 2'' Light transmission:13% The Stars and the DeepDescription Grey filter with 13%, 25% and 50% transmission. If you want to observe the moon with large aperture telescopes, you will usually need a relatively dark moon filter, so sufficient absorption is present with very large apertures. These filters are recommended starting from an aperture of 200mm, and especially with 250mm or above. Our expert comment: ND = Neutral Density % Lumicon filters use ND as a light transmission percentage. ND13 is

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